John dickason



@uitrit giedre gatwt @frn JOHN DICKASON, OF VEVAY, INDIANA. Letters Patent No. 65,354, dated June 4, 1867.

GATES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN DtCKASON,of Vevay, Switzerland county, and State of Indiana, certain new and useful Improvements in Gates, of whichthe following is a full and clear de being had to the accompanying drawing, making part of this specification.

My improvements in gates relate to that class usually termed Approach Openers, and closing mechanism is so arranged that the gate may be opened and' closed by the pa -to a spring-latch which-secures the gate when closed.

l vFigure 1 is a perspective view of a gate having my improvements connected therewith.

Figure 2 is a plan `of the same.

Figure 8 represents, in elevation, the spring-latch which I employ to secure the gate.

Figure 4 is a detail view of the rotating-lever by means of which the passing vehicles open andclose the gate.

The gate A, arranged between the posts B and C, to the latter of which it is hinged. The foot of the hinge-bar a of the gate A is stepped upon the adjustable bolt b secured tothe post C. The upper end of the hinge-bar a inclines toward the latch-bar c of the gate, and has pivoted to it one end of the circular lever-bar have invented scription, reference in which the opening ssing vehicle, and also D, having its fulcrum upon the head of the adjustable bolt d, which is tapped intol the side of the post C in thesame manner as is the bolt b. The axes of the bolts b and oZ are at right angles to each other, for the purpose ot' adjusting the gate to the post C, about which it swings.l The outer end ofthe circular lever-bar D is pivoted to the connecting-rod or bar e. The bar e is pivoted at its opposite end, which is near the ground, to the crank f of the crank-shaftf, to which is pivoted the LJ-shaped lever E. It projects above the ground, and is held in a. vertical position by the spring g, the 'spring g being secured to the U-shaped lever E and post t. The dog z' is secured to the crank-shaft f. It is provided with stops le lc which are engaged by the lever E when the gate is opened or closed. The connecting-bar e is pivoted to the vertical lever F at a'point near its connection with the circular lever-bar D. The vertical lever F is pivoted, midway in itslength, to the outer face of the post C.

l'lo the lower end of the lever F is pivoted the connecting-bar Z. The bar Z is pivoted at its outer end to the -erank m. The crank m is operated by the U-shaped lever-bar E', which engages the stops secured to the dog 2", the dog z" being keyed or otherwise made fast to the crank-shaft m. The U-shaped lever-bar E is maintained in ,a vertical position above the surfaceof the roadway by spring g', attached to the post L, and the lever-bar E. Upon the tops of the posts h and 7a are pivoted the lever-handles n n. The short and outer arm of each lever-handle 'n and 'n' is attached to the connecting-bar o and connecting-bar orespectively. These connectingbars o and o are pivoted to the vertical lever F immediately above its connection with the connecting-bare The latch G passes through a mortise in the latch-bar c of the gate A at a suitable distance above the ground. Its end without the gate is secured to the spring p by the clamping-strap p. The spring p is firmly secured to the latch-bar c. It is designed to keep the latch well out te engage the detaining-strips g located on the posts B and lt. The hand-lever r is pivoted to the upper rail of the gate A at s. The lower end of the hand-lever 1' is` pivoted to the inner end of latch Gr.

In approaching the gate in one direction the wheels of the vehicle press to the ground the U-s'haped lever E, causing it, in its rotation upon the crank-shaftf, to engage the stop lc of dog e, thereby rotating the crank f, and through the connecting-bar e, which, operating the circular lever-bar D, throws the top of hinge-bar a towards the posts L and C. The latter motion clevates the free end of the gate, disengages thc latch G from the detaining-strip g on post B, allowing the gate to revolve, when its centre of gravity is caused to pass between the adjustable bolt b, which pivots the foot of the hinge-bar a of the gate, and the post lt. The gate having swung open, the latch-bar c is sprung behind the detaining-strip q on post 7L, whereby the gate is kept open until the vehicle has passed through and the wheels depressed the U-shapcd lever-bar E', when, by means ofthe motion imparted to the circular lever-bar D, through the connecting-bar Z and vertical lever F, the free end of the gate is disengaged from the detaining-strip g upon post t, and is closed. The springs g and g cause, by' their elasticity, the U-shaped lever-barsE and E to resume the vertical position after the passage of the vehicle.

' The equestrian, to l.pass through the gateway, presses the free ends of the lever-handles n and n in the direction lie is moving, when the gate will alternately swing open and shut, since the lever-handles n and n are in direct communication with the circular level-bar D which operates the gate; or the gate may be opened by pressing the hand-lever 1*, thus springing back the latchebar c, and then revolving the gate towards the post h when it will close from the displacement of its centre oi' gravity. It is 'frequently necessary to reset the gatepost on account of the inclination of the post toward the roadway causing the gate to drag upon the ground, seriously impeding its opening. This defect is easily remedied by means of my adjustable bolts, Z1 and 0Z,which have screw-ends, and may be, by a few turns, made to change the inclination of the gate, and not only prevent the dragging of the free end upon the ground, but so adjust the gateV that it may be opened Aand closed with the least expenditure of force. v j

I am aware that gates have been constructed with the hinge-bar a inclined at the top from the post to which 'the gate is hinged, and also that wheel-levers, connected with ratchet-bars, pinions, and links, have been employed in the mechanism for opening and closing gates, to which devices and constructions I make no claim; but what I cla-im as new, and of my invention, is-

1. The system of lever-handles 'n and npconnecting-bars o and o', and circular lever-bard), in combination with the gate A, all arranged and operating substantially as and forthe purpose specified.

2. In combination with the gate A and the Ueshaped lever-bars E and E', which operate the cranksjl and m, the connecting-bars e and l, and the vertical lever F and circular lever-bar D, arranged and operated substantially as described.

3. The adjustable screw-bolts I) and fl, circular lever-bar D or its equivalent, the post C andA gate A, arranged substantially as herein described and for the purpose specified.

4. The latch G, consisting of the latch-bar c, secured to the springp by the clamping-strap p and the handlever rr, as described and for the purpose set forth.

l JOHN DICKASON.

Witnesses:

CHARLES L. FISHER,

JOHN kVrin Acnur. 

